Magazine



MAGAZINE.

Avrucmon mso APR. l2. 1920.

Patented Aug. 10,1920.

UNITED STATES4 PATENT OFFICE.

"CHARLES A. TUNKS, O F CLEVELAND, OH-IO, ASSIGNQR T AUTO ORDNANCECORPORA- V TION, OF vNIEW YORK, `IN'. Y., A CORPORATION OZE NEW YORK.

meaznm To all 'whom it may concern.'

Be it known 'that LCHRLEB A. TUNKs,

alcitizen of the United States, and resident of Cleveland, in the countyof 'Cuyahoga and State .of'0hio, have invented new and usefulImprovements in Ma azines, of which the following is a speci cation.

This invention relates to an improved magazine for use with ordnancewhich is particularly adapted for use with guns which are automatic orsemi-automatic in action.

My magazine is independent of the partisular form -of .the gun to whichit is attached and is so constructed as lto positively deliverammunition, one cartridge at a time, the power being preferabl suppliedb the movement of some part o the gun whic reciprocates under the recoilstresses of discharge. The cartridge feed in my ma azine as shownherein, is due -to gravity, -t e device having a hi ed closure at thelower end, the closure being actuated by a reciprocating member carriedby some portion of the gun or carriage.

It is an object of my invention to provide a magazine which is sim le inconstruction and positive in its operation, which depends upon gravityrather than mechanical means to eii'ect the cartridge feed 'and whichrequires but a small amount of power -for yits operation. It is anobject to provide a magazine which may be readily ada ted to varioustypes of guns without modi cation of the gun structure. Other andfurther objects will appear as the description proceeds.

My invention broadly involves a magazine adapted to be attached to somefixed portion of the gun or carriage adjacent the breech, the magazinehaving a closure adaptedto be swung open by the action of a memberpreferably attached to a part of the un or carria which reciprocatesunder t ie stress of iscliarge.

In the resent application I have shown and described a specificembodiment involving these features, the magazine being attached to thefixed shield of the gun and the actuating llug carried by the receiverwhich -reciprocates with the barrel after each discharge. In order tomake clear the manner of operation of my device I have shown it attachedto the breech of a gun of the type disclosed in the applicationSpec'ioation of Letters Patent.

Patented Aug. 10, 192.0.

Application nled April 12, 1920. Serial No. `'lsgll.

of Leslie D. Fisher, Serial No. 369,325, filed March 27, 1920, the gunforming no .part of the present invention. In the 4preferred form shownin the drawin igure 1 is a view from the rear showing the magazinemounted upon a gun, the gun .bein 1n the recoil position and shown lparty in cross section;

Fig. 2 is a view similar to Fig. l but -showing the magazine in sectionand the gun part of the way forward;

Fig. 3 is a view similar to Fig. 2 but showing the un in the forwardposition with the breec i closed;

Fig. 4 is a plan view partly broken away of the magazine and theadjacent lportion of :the gun; and

Fig. 5 is a cross section showing the con struction of the actuatin lug.

The gun shown in the rawings, but forming no part of the presentinvention, comrises tie barrel 6, receiver 7, having the oading openin 8therein, the fixed guard member 9, and reecli closure 10.

My improved magazine comprises the main housin member 11 which -issupported on the fixe guide 9 of the gun by the bracket 12, the housingbein" adapted to receive the cartridges or fixed` ammunition 13 insingle series as shown. The closure member 14 located at the lower endof the magazine has pivot lugs 15 at its ends supported by the brackets1G also attached to the fixed guide member 9. Spiral torsion s rings 17surround these pivot lugs 15 an are ad'usted-to maintain the closurenormally in tlie position shown in Figs. l and 8.

The lower surface of the closure 14 carries the spiral cam guide 18which is adapted to coact with the cam roll 19 supported by the bracket20 which is attached tothe receiver 7. This bracket is shown in detailin Fi 5. The roller 19 turns on the piu 21 an is supported directly onthe elbow 22. The plunger 2B has the feather 24 to prevent rotationandis surrounded by the sprin 25, one end bearing on the nut 26 and t eother end against the base of its cavity in the member 20.

'In the operation cycle of my magazine the position shown in lig. B maybe considered normal, the magazine closure 14 beingl in the closedposition and the cam roll being at the forward end of its path, slightlbeyond the end of the cam guide 18. en the gun"`bar're1 and receivervrecoil due to firing the piece the lug 20 and roll 19 move with them,the roll being out of contact with the cam guide 18 unt11 adjacent theend when it contacts with the outer side o f, the guide and the roll ismoved outward against the spring 25. As the roll passes the end of theguide 18 it is returned to its normal position as 4shown in Figs. 1 and5 by the sprin 25. During the forward or-counter' recoi movement of the'barrel the cam roll 19 moves forward in contact with the inner side ofthe cam guide 18 and thereb rotates the closure against the s rin s 1 tothe position shown in Fig. 2 w en t ie lowermost cartridge is throwninto vthe receiver through the opening 8. The edge 31 of the closurecontacts with the next cartridge vand revents its following thelowermost one. he cam 'roll ,passes on beyond the end of the guide 18 toits position as shown in Fig. 3 and the closure 14 is immediatelyreturned to its normal closed position by the springs 17.

While I have shown my magazine as placed to one side of the receiver ofthe piece it may obviously be laced at an anule or substantiall above te receiver. 'Iphe magazine is in ependent of the ty e of gun with whichit is to be used, simp y requiring one-member to be attached to a fixedpart and the other to a moving part. The actuating 1u and magazine proer may be interchan e in this re ard witiiout modiication. Ihe cam guite18 ma?l be -made of a pitch to correspond to the ength and speed of themovement of the gun to which it is attached and the guide andy cam willbe so related as to cause the magazine to discharge a cartridge at thedesired vpoint in the cycle of operation of the gun to which it isattached.

I claim:

1. In combination with a gun having fixed and reciprocating parts, amagazine adapted to contain cartridges attached t0 the fixed parts, themagazine having a closure at the bottom thereof, the closure having acam guide thereon, an actuating lug attached to the reciprocating part,and ,co-

acting with the cam guide to move the magazine closure to release thelowermost cartridge during the movement of the reciprocating part of thegun, and means to return the closure to the closed osition.

2. In combination wit a gun having fixed and reciprocating parts, amagazine adapted to contain cartridges attached to the fixed parts, themagazine having a closure at the bottom thereof, the closure having acam guide thereon, an actuating lug attached to the reciprocating part,and coacting with the cam guide to move the magazine closure about thelowermost cartridge during the movement of the reciprocating part of thegun, and a torsion spring associated with the magazine closure andadaptedto' return it tothe closed position.

3.-- In combination with a gun having fixed and reciprocating parts, amagazine adapted to contain cartridges attached to the x'e'd part, themagazine having a rotating closure at the bottom thereof, t e closurehaving a cam guide thereon, an actuating lug attached to thereciprocating part, and coacting with the cam guide-to rotate theclosure to open position about the axisof the lowermost cartridge duringthe movementof the reciprocating part of the gun.

-4. In combination with a gun having fixed and reciprocating parts, amagazine adapted to contain cartridges attached to the fixed part, themagazine having a rotatin'g closure at the bottom thereof, the closurehaving a cam guide thereon, an actuating lug attached to thereciprocating part, and coacting with the cam guide to rotate theclosure to open position about the axis of the lowermost cartridgeduring the movement of the reciprocating part of the gun, and to therebydeliver one cartridge to the gun, a portion of the closure preventingdeivery of the remaining cartridges.

5. A magazine for guns comprising a housing member adapted to receivethe cartridges, a supporting bracket for said housing adapted to beattached to the fixed part of a gun, a rotatable closure for themagazine having its ends pivoted to the housing 100 member, torsionsprings surrounding lthe pivots and adapted to maintain the closurenormally in closed position, a spiral cam guide on the outer surface ofsaid closure and a cam roll supported by a bracket 105 adapted to beattached to a moving part of a gun, the cam roll and cam guide being soassociated that the closure is opened by the movement of the moving partof the gun.

6. A magazine for guns comprising u 110 housing member adapted toreceive the cartridges, a supporting bracket for said housing adapted tobe attached to the fixed part n, a rotatable closure for the magazineaving its ends pivoted to the housing 115 member, torsion springssurrounding the pivots and adapted to maintain the closure normally inclosed position, a spiral cam guide on the outer surface of said closureand a cam roll supported by a bracket 120 adapted to be attached to amoving part of a gun, the cam roll and cam guide being so associatedthat the closure is rotated substantially a uarter circle and thelowermost cartridge de ivered laterally to the gun.

7. A magazine for guns comprising n housing member adapted to receivethe cartridges, a supporting bracket for said housing adapted to beattached to the fixed part of a gun, a rotatable closure for the magaisozine having its ends pivoted to the housing member, torsion springssurroundin the pivots and adapted to maintain the c osure normally inclosed position, a spiral cam guido on the outer surface of said closureand acam roll sup orted by a bracket adapted to be attache to a movingpart of a gun, the cam roll and cam guide being so associated that theclosure is rotated substantially a uarter circle and the lowermostcartridge dlivered laterally to the gun, a portion of the closure beingcarried y the rotation into contact with the next cartridge to reventits following the lowermost cartri ge.

8. In combination with a gun having fixed and reciprocating parts, amagazine adapted to contain cartridges attached to the fixed part, themagazine havin a rotating closure at the bottom thereof, t e closurehaving a cam guide thereon, an actuating lug attached to thereciprocating part, an coacting with the cam guide to rotate the closureabout the axis of the lowermost cartridge to open position during thecounter recoil movement of the reciprocating part of the gun.

9. In combination with a gun having fixed and reciprocating parts, amagazine a a ted to contain cartridges attached to the xed part, themagazine having a closure at the )ottom thereof, the closure having acam guide thereon, an actuatin lug attached to the reciprocating part,an coactin with the cam guide to o n the magazine uriii the movement oft e reciprocating part o the gun, the lug being normally out of con tactwith the guide, passing on one side of the guide dui'in movement in onedirection, and contacting with the other side of the guide during themovement in the opposite direction.

10. In combination with a gun having fixed and reciprocating parts, amagazine adapted to contain cartridges attached to the fixed part, themagazine havin a rotating closure at the bottom thereof., t ie closurehaving a cani guide thereon, an actuating lug attached to thereciprocating part, and coacting with the cam guide to rotate theclosure to open position during the movement of the reciprocating partof the gun, the lug being normally out of engagement with the guide,passing outside the guide during recoil of the guide and contacting withthe inner side of the guide during counter recoil.

11. A mn azine for (guns comprising a housing mem er adapte to receivethe cartridges, a supporting bracket for said housing adapted to beattached to the fixed part of a n, a rotatable closure .for the magazine aving its ends pivoted to the housing member, torsion springssurrounding the pivots and adapted to maintain the closure normally inclosed position, a spiral cam guide on the outer surface of said closureand a cam roll yieldably su ported by a bracket adapted to be attache toa moving part of a gun, the cam roll and cani guide ein# so associatedthat the closure .is opened by the movement of the moving part of thegun in one direction, the cam roll yielclably passing the guide duringmovement in the opposite direction.

12. A magazine for uns comprising a housing member adaptez? to receivethe cartridges, a supporting bracket for said housing adapted to beattached to the fixed part of a gun, a rotatable closure for themagazine having its ends ivoted to the housing member, torsion springssurrounding the pivots and adapted to maintain the closure normally inclosed position, a spiral cani guide on the outer surface of saidclosure and a cam roll yieldably supported by a bracket adapted to beattached to a inov ing part of a gun, the cam roll and cam guide beingso associated that the closure is rotated substantially a quarter circleby contact between the cam roll and cani dui-ing movement of the movino'part in one direction and the cam roll yieldably contacts with the camdilring movement in the opposite direction.

13. A magazine for uns comprising a housing member adapte( to receivethe cartridges, a supporting bracket for said housing adapted to beattached to the fixed part of a n, a rotatable closure for the magazinciaving its' ends pivoted to the housing member, torsion springssurrounding the pivots and adapted to maintain thc closure normally inclosed position, a spiral cam guide on the outer surface of said closureand a cam roll yieldably supported hy a bracket adapted to be attachedto a moving part of a gun, the cam roll and cam guide ein so associatedthat the closure is rctate substantially a uarter circle and thelowermost cartridge elivered laterally to the gun by non-yieldingcontact between the cam roll and cam during counter recoil of the gun.the cam roll yieldably passing the cam duringl iecoil.

Signed by me at Cleveland, Ohio, this 'i' th day of April 1920.

CHARLES A. TUNKS.

